by Roeslein Roeslein

Roeslein & Associates is proud to have been listed #45 on the list of Fastest-Growing Private Companies in the St. Louis area by the St. Louis Business Journal. This list honors companies in the St. Louis area that have a three-year sales history with an increase in each fiscal year over the last; revenue of more than $1 million in fiscal 2018; and be a locally based, independent, privately held business.  

This accomplishment is a significant milestone for the company as revenue grew from $239 million in 2019 to $359 million in 2020. However, Roeslein’s primary focus isn’t on increasing its revenue but on building its team of highly skilled subject matter experts. This organic growth is needed for the company to keep up with customer demand and continue to be an industry leader throughout multiple markets.  

“2021 has been a very exciting year for Roeslein; we added 259 employee-owners locally, another 100 employees globally, and we added new benefits and perks to show our appreciation,” Sarah Davidson, Human Resources Director for Roeslein, stated. “We have set strategic goals to continue our retention and growth throughout the organization moving forward into 2022 and beyond. The best is yet to come!” 

Over the last year, the company has implemented renovations across nearly all of Roeslein’s locations. Roeslein Modular Fabrication in Red Bud, IL, added an additional building for manufacturing space earlier this year, while Roeslein’s United Kingdom office is planning on relocating in January 2022. Additional renovations were made at locations in Brazil, Poland, St. Louis, MO, and Hollister, CA. 

2020 marked 30 years of business for Roeslein, and the company continues to serve as an industry leader in the engineering, manufacturing, and installation of modular process systems. Roeslein’s emphasis on schedule compliance helps drive the company as an industry leader while also providing more access to resources, enhanced ability to control production schedules, and reduction in overall project costs. These process improvements and continued innovations have led to Roeslein’s continued business and financial growth.  

To accommodate its growing workload, Roeslein is currently hiring across its global offices. To apply or view current openings, visit the website at 

Roeslein & Associates was founded in 1990, specializing in engineering, manufacturing, and construction services. The company has product offerings in both the container manufacturing industry and the process and energy sectors. Its 1000+ employees are spread throughout offices in North America, South America, Europe, and Asia. To find out more, please visit